Apollonius of Perga

British  

/ ˈpɜːɡə, ˌæpəˈləʊnɪəs /

noun

1. ?261–?190 _bc , Greek mathematician, remembered for his treatise on conic sections

---

Example Sentences

Astrolabes are believed to have been around at the time of Apollonius of Perga, a Greek mathematician from the third-century B.C. known as the Great Geometer.

From New York Times

There is slight evidence that Apollonius of Perga may have been the originator of the system, but it was reserved for Hipparchus to work it out in final form.

From Project Gutenberg

The Greeks contributed little more to elementary geometry, although Apollonius of Perga, who taught at Alexandria between 250 and 200 B.C., wrote extensively on conic sections, and Hypsicles of Alexandria, about 190 B.C., wrote on regular polyhedrons.

From Project Gutenberg

Proclus tells us that Apollonius of Perga, who wrote the first great work on conic sections, used a plan which is substantially that which is commonly found in textbooks to-day,—constructing two isosceles triangles upon the line as a common base, and connecting their vertices.

From Project Gutenberg

In solido, i.e. as a section of a cone or cylinder, it may be defined, after Menaechmus, as the perpendicular section of an “acute-angled” cone; or, after Apollonius of Perga, as the section of any cone by a plane at a less inclination to the base than a generator; or as an oblique section of a right cylinder.

From Project Gutenberg